Sewage source heat pump system water taking lifting pond with coarse filtration and automatic decontamination
Technical Field
The invention relates to the field of sewage treatment, in particular to a water taking lifting pool of a sewage source heat pump system with coarse filtration and automatic decontamination.
Background
Waste heat of sewage is recognized as a clean energy source with higher recovery and utilization value. The urban sewage discharge is huge, and the urban sewage discharge contains a large amount of waste heat energy, and is directly fed back through energy recovery or output in a heat supply and cold supply form, which is one of main routes.
The sewage waste heat utilization is more and more paid attention to, the sewage waste heat resource is fully utilized in various places, and a sewage main canal requiring waste heat utilization and the vicinity of a sewage plant should be preferentially provided with a sewage source heat pump system.
Compared with a soil source heat pump system and an air source heat pump system, the sewage source heat pump system has the advantages of being clear in energy saving, environment-friendly, economical and the like, and has larger development space and market prospect along with the acceleration of the urban process.
Although some application cases of the sewage source heat pump technology exist at home and abroad at present, the market development is slow, various impurities and suspended matters in sewage can cause the problems of pipeline blockage, low heat exchange efficiency and the like, and more manpower is consumed for cleaning, operation and maintenance in waste heat utilization.
The core component of the sewage source heat pump system, which is directly contacted with sewage, is provided with a sewage water taking device and a sewage source heat exchanger.
The existing sewage water intake technology is provided with a gravity sewage water guiding/draining channel, a pressure water guiding/draining system with a buffer pool, a square buffer Chi Qushui and the like, has the problems of large civil engineering quantity, large buffer Chi Ben, high maintenance cost and the like, and limits the development of a sewage source heat pump system.
If the effective method can be adopted to reduce the size of the sewage buffer pool, improve the degree of automation, reduce the civil engineering cost and reduce the operation and maintenance cost, the method can effectively assist the popularization and application of the sewage source heat pump technology.
Disclosure of Invention
The application provides a sewage source heat pump system water taking lifting pool with coarse filtration and automatic decontamination, which solves the problem of large-size sewage and slurry treatment in a water source, and realizes automatic filtration, thereby reducing maintenance cost and maintenance period.
The technical problems solved by the invention can be realized by adopting the following technical scheme:
A sewage source heat pump system water intake lifting pond with coarse filtration and automatic decontamination, comprising:
The lifting pond is internally provided with a sewage inlet chamber, a sewage buffer pond and a sewage water outlet chamber in sequence, wherein the heights of the lower surfaces in the sewage inlet chamber, the sewage buffer pond and the sewage water outlet chamber are gradually reduced from left to right respectively, the height of the lower surface in the sewage water outlet chamber is higher than that of the lower surface in the sewage water inlet chamber and the sewage buffer pond, the lower surface in the sewage water inlet chamber is higher than that of the lower surface in the sewage buffer pond, and the lower surface in the sewage water inlet chamber is lower than that in the sewage water outlet chamber;
The conveying channel is arranged above the lifting pond and is communicated with the sewage buffer pond of the lifting pond;
The waterproof retaining wall is arranged between the sewage inlet chamber and the sewage buffer pool and is provided with a filtering port;
The lower end of the filter part is detachably connected to the inner lower surface of the filter port, and the upper end of the filter part passes through the conveying channel and extends to the upper part;
A check gate disposed between the sewage buffer tank and the sewage withdrawal chamber;
The collecting tank is arranged below the upper end of the filtering part;
the sewage treatment device comprises a sewage inlet chamber, a sewage buffer pool, a sewage extraction part, a sewage discharge part and a sewage treatment part, wherein the sewage extraction part is provided with a pair of sewage inlet ends which are respectively positioned on the inner lower surfaces of the sewage inlet chamber and the sewage buffer pool;
A water conduit in communication with the sewage intake chamber;
the water return pipe is communicated with the sewage water return chamber, the water return pipe is positioned at the lower end of the side wall surface of the sewage water return chamber, and the water inlet of the water return pipe is lower than the water outlet of the water guide pipe;
The water taking main pipe is communicated with the sewage buffer tank;
and the water-return main pipe is communicated with the sewage water-return chamber.
Further, the filtering section includes:
Coarse grid conveyer belt, horizontal conveyer belt and driving motor, the one side that the filter port is located the sewage buffer tank is equipped with a pair of grid installation retaining wall, coarse grid conveyer belt lower extreme can dismantle the connection at the internal lower surface of filter port, coarse grid conveyer belt slope upwards extends and passes the conveying passageway, a pair of grid installation retaining wall is located coarse grid conveyer belt both sides, and coarse grid conveyer belt both sides are connected with a pair of grid installation retaining wall respectively, horizontal conveyer belt sets up the one side top on conveying passageway top, horizontal conveyer belt one end is located the collecting vat top, horizontal conveyer belt other end and coarse grid conveyer belt top butt joint, driving motor sets up in the conveying passageway top, and driving motor is connected with horizontal conveyer belt and coarse grid conveyer belt drive respectively.
Further, the water outlet end of the water diversion pipe is blocked by a waterproof retaining wall.
Further, the sludge extraction part comprises a pair of extraction units, sludge pits are arranged on one side of the inner lower surface of the sewage inlet chamber and one side of the inner lower surface of the sewage buffer pool, the sewage inlet ends of the pair of extraction units are respectively arranged in the pair of sludge pits, and the sewage discharge ends of the pair of extraction units are respectively communicated with the sewage return chamber;
the extraction unit comprises a sludge pump and a sludge pipe, wherein the sludge pump is arranged in a sludge pit, the sewage discharging end of the sludge pump is communicated with a sewage water outlet chamber through the sludge pipe, and the sludge pipe is positioned above the sewage water outlet chamber;
the inner lower surfaces of the sludge pits are inclined to one side of the sludge pump.
Further, the check gate is a gravity self-hanging check gate.
Further, the sewage buffer pool is provided with an inspection manhole, and the side surface of the waterproof retaining wall and the inspection manhole are both internally provided with a cat ladder.
The check gate is higher than the water inlet end of the water return pipe, and the check gate, the water guide pipe and the water return main pipe are positioned at the same height.
The invention has the beneficial effects that the anti-flushing retaining wall is adopted, so that the problem that the mechanical coarse grating is not good due to direct impact filtration caused by that water inlet of the water conduit can directly flush into the sewage buffer chamber is effectively solved, the misplacement installation of the water conduit and the mechanical coarse grating is further realized, the water source of the water conduit is blocked by the anti-flushing retaining wall, the impact force of water flow is slowed down, and the influence on the filtration efficiency caused by overlarge sewage flow rate is effectively avoided.
Due to the adoption of the mechanical coarse grille, the problem that the pipeline is blocked by large-size dirt is effectively solved, and manual real-time monitoring and regular cleaning are needed, so that the large-size dirt is automatically cleaned, and the dirt is conveyed to the ground through the mechanical coarse grille.
Due to the adoption of the collecting tank, the problem of dirt accumulation is effectively solved, and centralized collection through the collecting tank is further realized, so that the cleaning period is reduced.
Due to the adoption of the sludge tank, the problem of mud precipitation in the sewage inlet chamber and the sewage buffer tank is effectively solved, and further the purpose that sludge flows to one end with low topography through the inclination of the lower surfaces in the sewage inlet chamber and the sewage buffer tank and enters the sludge tank, and is pumped into a sewage water return chamber through a sludge pump to be discharged.
By adopting the water taking main pipe and the water return main pipe, the waste heat of the sewage in the sewage buffer pool can be extracted through the water taking main pipe, the waste heat of the sewage is extracted through the sewage source heat pump, and the sewage is sent into the sewage water return room through the water return main pipe, so that the waste heat utilization is completed.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top cross-sectional view of the present invention.
In the figure, a sewage inlet chamber 1, a sewage buffer tank 2, a sewage water outlet chamber 3, a conveying channel 4, a waterproof retaining wall 5, a check gate 6, a collecting tank 7, a water conduit 8, a water outlet pipe 9, a water outlet dry pipe 10, a water outlet dry pipe 11, a coarse grid conveying belt 12, a transverse conveying belt 13, a driving motor 14, a grid-mounted retaining wall 15, a sludge pit 16, a sludge pump 17, a sludge pipe 18, a maintenance manhole 19 and a ladder 20.
Detailed Description
Example 1
Referring to fig. 1-2, which are schematic structural diagrams of embodiment 1 of the present invention, a water intake lifting pool of a sewage source heat pump system with coarse filtration and automatic decontamination, comprising:
The sewage treatment device comprises a lifting pond, wherein a sewage inlet chamber 1, a sewage buffer pond 2 and a sewage outlet chamber 3 are sequentially arranged in the lifting pond, the heights of the inner lower surfaces of the sewage inlet chamber 1, the sewage buffer pond 2 and the sewage outlet chamber 3 are gradually reduced from left to right, the height of the inner lower surface of the sewage outlet chamber 3 is higher than that of the sewage inlet chamber 1 and the sewage buffer pond 2, the inner lower surface of the sewage inlet chamber 1 is higher than that of the sewage buffer pond 2, and the inner lower surface of the sewage inlet chamber 1 is lower than that of the sewage outlet chamber 3;
a transfer passage 4, the transfer passage 4 being disposed above the lift tank and communicating with the sewage buffer tank 2 of the lift tank;
The waterproof retaining wall 5 is arranged between the sewage inlet chamber 1 and the sewage buffer pool 2, and the waterproof retaining wall 5 is provided with a filtering port;
a filter part, the lower end of which is detachably connected with the inner lower surface of the filter port, and the upper end of which passes through the conveying channel 4 to extend to the upper part;
a check gate 6, the check gate 6 being disposed between the sewage buffer tank 2 and the sewage withdrawal chamber 3;
a collecting tank 7, the collecting tank 7 being arranged below the upper end of the filtering part;
The sewage treatment device comprises a sewage extraction part, a sewage treatment part and a sewage treatment part, wherein the sewage extraction part is provided with a pair of sewage inlet ends which are respectively positioned on the inner lower surfaces of a sewage inlet chamber 1 and a sewage buffer tank 2, and a sewage discharge end of the sewage extraction part is positioned in a sewage outlet chamber 3;
a water conduit 8, the water conduit 8 being in communication with the interior of the sewage intake chamber 1;
a water return pipe 9, wherein the water return pipe 9 is communicated with the sewage water return chamber 3, the water return pipe 9 is positioned at the lower end of the side wall surface of the sewage water return chamber 3, and the water inlet of the water return pipe 9 is lower than the water outlet of the water guide pipe 8;
A water intake main pipe 10, the water intake main pipe 10 being communicated with the sewage buffer tank 2;
a water return main pipe 11, and the water return main pipe 11 is communicated with the sewage water return chamber 3.
In actual use, sewage is discharged into the sewage intake chamber 1 through the water guide pipe 8, the sewage is blocked by the waterproof retaining wall 5, brunt, the sewage is filled into the sewage intake chamber 1, part of the mud and sand is deposited downwards, the mud is deposited to one side under the action of the inclination of the inner lower surface of the sewage intake chamber 1, the part of the mud and sand is conveyed into the sewage withdrawal chamber 3 through the mud extraction part, the sewage flows to one side, and passes through the filtering port, when passing through the filtering port, the sewage is filtered through the filtering part, the large-size sewage is blocked by the filtering part, the sewage is lifted to the ground through the conveying channel 4 by the filtering part and then is conveyed into the collecting tank, the sewage enters the sewage buffer tank 2 through the filtering part, the mud and sand is deposited in the sewage buffer tank 2, the mud and sand are conveyed into the sewage withdrawal chamber 3 through the mud extraction part under the action of the inclination of the inner lower surface of the sewage buffer tank 2, the sewage entering the sewage withdrawal chamber 2 also has a temperature, the sewage with the waste heat pump water intake pipe 10 extracts the sewage with waste heat through the sewage source, and the sewage heat is discharged into the water withdrawal chamber 11 through the water withdrawal pipe. The waste water utilization of sewage is adjusted according to the sewage water volume, when the sewage volume is little, reduce the sewage intake dry pipe water intake, when the sewage water volume is greater than waste water utilization water volume and goes up the line, the water level promotes in the sewage buffer tank 2, when reaching check gate 6, check gate 6 receives under the influence of side direction water pressure, open, make water get into the sewage water outlet chamber, make partial sewage directly arrange into in the sewage water outlet chamber 3 through check gate 6, simultaneously wash with the silt thick liquid that gets into in the sewage water outlet chamber 3 and the sewage that the dry pipe 11 was got into of returning water is washed out and is mixed, make the silt thick liquid in the sewage water outlet chamber 3 can not deposit, the rethread water outlet pipe 9 discharges.
The sediment extracting part can prevent sediment slurry in the sewage inlet chamber 1 and the sewage buffer tank 2 from excessively precipitating.
Example 2
Referring to fig. 1-2, the present embodiment is different in that the filtering part includes:
The sewage buffer tank comprises a coarse grille conveyer belt 12, a transverse conveyer belt 13 and a driving motor 14, wherein a pair of grille installation water retaining walls 15 are arranged on one side of a filtering opening, which is positioned on the sewage buffer tank 2, the lower end of the coarse grille conveyer belt 12 is detachably connected to the inner lower surface of the filtering opening, the coarse grille conveyer belt 12 obliquely upwards extends to pass through a conveying channel 4, a pair of grille installation water retaining walls 15 are positioned on two sides of the coarse grille conveyer belt 12, two sides of the coarse grille conveyer belt 12 are respectively connected with the pair of grille installation water retaining walls 15, the transverse conveyer belt 13 is arranged above one side of the top end of the conveying channel 4, one end of the transverse conveyer belt 13 is positioned above the collecting tank 7, the other end of the transverse conveyer belt 13 is in butt joint with the top end of the coarse grille conveyer belt 12, and the driving motor 14 is arranged above the conveying channel 4 and is respectively in driving connection with the transverse conveyer belt 13 and the coarse grille conveyer belt 12.
When in actual use, large-size dirt is filtered by the coarse grille conveyer belt 12, so that the large-size dirt is hung on the coarse grille conveyer belt 12, and meanwhile, the coarse grille conveyer belt 12 is driven to rotate by the driving motor 14, so that the dirt moves upwards along with the coarse grille conveyer belt 12 and passes through the conveying channel, and then is discharged into the collecting tank 7 by the transverse conveyer belt 13.
During installation, through carrying out concrete placement on the ground, make driving motor 14 and be used for coarse grille conveyer belt 12, the shelf that transverse conveyor belt 13 supported can the effectual stable installation, coarse grille conveyer belt 12 slope's installation simultaneously, make the filth can not drop perpendicularly, coarse grille conveyer belt 12 both sides and grid installation retaining wall 15 seal installation simultaneously, make water can not pass through the space installation between coarse grille conveyer belt 12 and the grid installation retaining wall 15, be connected with coarse grille conveyer belt 12 through grid installation retaining wall 15 simultaneously, also play the structural strength of increase coarse grille conveyer belt 12, prevent unsettled department and wash out the deformation, can effectually solve this problem through grid installation retaining wall 15, the right-angle limit of its side is fixed with the filter port simultaneously, the top is fixed with conveying channel 4 border, make the partial structural strength that coarse grille conveyer belt 12 received the water impact improve.
Example 3
Referring to fig. 1-2, the difference of this embodiment is that the water outlet end of the water conduit 8 is blocked by the water-proof retaining wall 5.
In actual use, the water flow of the water diversion pipe 8 is blocked by the waterproof retaining wall 5, and is buffered by the volume in the sewage inlet chamber 1, so that the problem of flow speed reduction is solved.
Example 4
Referring to fig. 1-2, the difference of this embodiment is that the sludge extraction part includes a pair of extraction units, the sewage intake chamber 1 and one side of the inner lower surface of the sewage buffer tank 2 are both provided with sludge pits 16, the sewage intake ends of the pair of extraction units are respectively disposed in the pair of sludge pits 16, and the sewage discharge ends of the pair of extraction units are respectively communicated with the sewage withdrawal chamber 3;
The extraction unit comprises a sludge pump 17 and a sludge pipe 18, wherein the sludge pump 17 is arranged in a sludge pit 16, the sewage discharging end of the sludge pump 17 is communicated with the sewage withdrawal chamber 3 through the sludge pipe 18, and the sludge pipe 18 is positioned above the sewage withdrawal chamber 3;
The inner lower surfaces of the sludge pits 16 are inclined toward the sludge pump 17.
In actual use, the sludge pump 17 continuously wrings and timely extracts the sediment which is precipitated downwards, so that the problem of reduction of the internal volume caused by excessive sediment is prevented, and the sediment is mixed and discharged by the sewage water outlet chamber 3, so that static sediment of the sediment can be reduced through instant discharge, and the operation period of filtration is prolonged.
Example 5
Referring to fig. 1-2, the present embodiment differs in that the check gate 6 is a gravity self-hanging check gate.
In actual use, the check gate 6 is a one-way gate, so that sewage in the sewage outlet chamber 3 cannot flow back into the sewage buffer pool 2.
Example 6
Referring to fig. 1-2, the difference of this embodiment is that the sewage buffer tank 2 is provided with an inspection manhole 19, and a ladder stand 20 is fixed on the side surface of the waterproof retaining wall 5 and in the inspection manhole 19.
In actual use, workers can enter the sewage buffer pool 2 through the inspection manhole 19 and the crawling ladder 20 to perform periodical dimension work.
Example 7
Referring to fig. 1-2, the present embodiment is different in that the check gate 6 is located higher than the water inlet end of the water return pipe 9, and the check gate 6 is located at the same height as the water conduit 8 and the water return main pipe 11.
In actual use, the positions of the check gate 6 and the water return main pipe 11 are higher than the water inlet end of the water return pipe 9, so that water enters the sewage water return chamber 3 to have turbulence characteristics, thereby improving the purpose of mixing mud and sand slurry, and simultaneously enabling the settled mud and sand to be influenced by water flow without excessively accumulating in large quantity.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the scope of the knowledge of those skilled in the art without departing from the spirit of the present invention, which is within the scope of the present invention.